Pruning guide
How to prune sweet black-eyed susan
More sweet black-eyed susan care
Pruning sweet black-eyed susan — FAQ
When should I prune sweet black-eyed susan?
Deadhead throughout summer and early autumn; cut back in late autumn. Remove spent flower heads by cutting the stem back to the nearest lateral bud or leaf node. For the autumn cut-back, use loppers or pruners to reduce all stems to 10–15 cm. Divide crowded clumps every 3–4 years in spring.
How often does sweet black-eyed susan need pruning?
Deadhead regularly in season; annual hard cut-back in late autumn. Sweet Black-Eyed Susan benefits from deadheading to extend its long summer-to-autumn bloom period. Cut stems back to a lateral bud or leaf to encourage reblooming. In late autumn, cut the whole plant to 10–15 cm above the ground. Alternatively, leave seedheads standing for birds through winter.
How do you prune sweet black-eyed susan?
Remove spent flower heads by cutting the stem back to the nearest lateral bud or leaf node. For the autumn cut-back, use loppers or pruners to reduce all stems to 10–15 cm. Divide crowded clumps every 3–4 years in spring.